Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
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HOMESERVICE MANUALSHONDA2001CR-V LX, 2.0 RD2, MDLAREPAIR AND DIAGNOSISENGINE PERFORMANCESYSTEMENGINE CONTROLS - SYSTEM & COMPONENT TESTINGIDLE CONTROL SYSTEMSREVERSE POSITION SWITCH SIGNAL CIRCUIT (INSIGHT)
2001 Honda CR-V LX, 2.0 RD2, MDLA
Reverse Position Switch Signal Circuit (Insight)
2001 Honda CR-V LX, 2.0 RD2, MDLASECTION Reverse Position Switch Signal Circuit (Insight)
NOTE:
This signal informs PCM when transaxle is shifted into reverse.
- Turn ignition on. Check back-up lights. If back-up lights are not on when transaxle is not in reverse, go to next step. If back-up lights are on when transaxle is not in reverse, check reverse position switch and adjust, repair or replace as necessary. See ADJUSTMENTS in appropriate MANUAL TRANSMISSIONS SERVICING article in MANUAL TRANSMISSIONS. If back-up lights are not on, shift transaxle into reverse and check back-up lights. If back-up lights come on, go to next step. If back-up lights do not come on, go to step 3.
- Backprobing, measure voltage between PCM connector "B" (25-pin connector) terminals No. 20 (Brown/Black wire) and No. 24 (Green/Black wire). See Figure. If battery voltage is present, problem is intermittent. Reverse position switch signal is okay at this time. If battery voltage is not present, repair open in Green/Black wire between reverse position switch and PCM connectors. See WIRING DIAGRAMS article.
- Inspect No. 27 (7.5-amp) fuse in underdash fuse/relay box. If fuse is okay, repair open in Yellow/Red wire between underhood fuse/relay box and 16-pin in-line connector located under center of instrument panel and Yellow wire between 16-pin in-line connector and reverse position switch connector. See WIRING DIAGRAMS article. If fuse is not okay, repair short in Green/Black wire between reverse position switch and PCM connectors and/or short in Yellow/Red wire between underhood fuse/relay box and 16-pin in-line connector located under center of instrument panel and Yellow wire between 16-pin in-line connector and reverse position switch connector. See WIRING DIAGRAMS article. Replace No. 27 (7.5-amp) fuse.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.